Shutter is a free & open-source feature-rich screenshot program which has been licensed under GPL v3. It allows user to capture almost everything. It can take a screenshot of a specific area, window, your whole screen, or even of a website – apply different effects to it, draw on it to highlight points, and then upload to an image hosting site, all in one window. Isn’t it awesome ?

Lets take a look at the Features :-

1)Capturing the Desktop :-

Capture a Specific Area: Select any region of the screen and capture only those parts you really need.

Capture a Window: Simply use your mouse to select the window you want to capture.

Capture the Desktop: It does not only capture all the contents of your desktop, it also supports Multi-monitor settings.

Capture a Website: Shutter uses gnome-web-photo to capture a website without opening a browser window.

Capture a Menu or Tooltip: Capturing menus or tooltips is very easy with Shutter. You select one of the options and a (user-defined) countdown starts. During this time you can open the desired menu or let a specific tooltip come up. Shutter will recognize and capture it. This one is my favourite